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# ABPersonComparePeopleByName(_:_:_:)

Indicates how two person records get sorted.

```
func ABPersonComparePeopleByName(_ person1: ABRecord!, _ person2: ABRecord!, _ ordering: ABPersonSortOrdering) -> CFComparisonResult
```

## Parameters

`person1`

The first person.

`person2`

The second person.

`ordering`

Indicates whether to sort by first name or by last name. See [Sort Order](/documentation/AddressBook/1619730-sort-order).

## Return Value

- `kCFCompareLessThan` when `person1` goes before `person2`.

## Discussion

- `kCFCompareEqualTo` when `person1` and `person2` have the same name.
- `kCFCompareGreaterThan` when `person1` goes after `person2`.

---

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